MODI INSTITUTE OF TECHNOLOGY A

SEMINAR REPORT

ON

NEAR FIELD COMMUNICATION

SUBMITTED BY:MAHIMA CHITTORA FINAL YEAR (ECE)

CONTENTS

WHAT IS NFC? EVOLUTION OF NFC HOW NFC WORKS? OPERATION OF NFC MODES OF OPERATION NFC APPLICATION NFC SPECIFICATION SOME DEVICES USING NFC TECHNOLOGY NFC ENABLED MOBILE WITH SD & SIM CARD USES OF NFC COMPARISON OF NFC WITH EXISTING TECHNOLOGIES ADVANTAGES LIMITATIONS CONCLUSION

WHAT IS NFC?

NFC or Near Field Communication is a short range high frequency wireless communication technology.

A radio communication is established by touching the two phones or keeping them in a proximity of a few centimeters.

NFC is mainly aimed for mobile or handheld devices.NFC is an extension of Radio frequency identification

or RFID technology.RFID is mainly used for tracking and identification by

sending radio waves.The design includes a near-field transmitter and

receiver to send data.

EVOLUTION OF NFC

Evolution of NFC 2002- The technology was jointly developed by Philips & Sony.

2004- Nokia, Philips and Sony established the NFC Forum.

2006- Initial specifications for NFC tags are given. 2006- Nokia 6131 was the first NFC enabled

Phone. 2012- Google Nexus was the first Android NFC

enabled Phone.

HOW NFC WORKS?

WORKING PRINCIPLE: NFC works on the principle of RFID (Radio

Frequency Identification).

OPERATION OF NFC: Operation Of NFC Near field communication is based on inductive-coupling.

NFC works using magnetic induction between two antennas located within each other's ‘near field’.

OPERATION OF NFC

MODES OF OPERATION

MODES OF OPERATION

PASSIVE MODE

ACTIVE MODE

MODES OF OPERATION

In Active mode, both devices with NFC chip generates an electromagnetic field and exchange data.

Two NFC enabled devices transferring data in active mode

MODES OF OPERATION

In Passive mode, there is only one active device and the other uses that field to exchange information.

A NFC-enabled mobile phone is paired with a RFID-tagged "smart poster"

NFC APPLICATION

NFC applications can be split into the following three basic categories:

Touch and GoTouch and ConfirmTouch and Connect

APPLICATION OF NFC

Touch and Go Applications such as access control or

transport/event ticketing, where the user needs only to bring the device storing the ticket or access code close to the reader. Example: picking up an Internet URL from a smart label on a poster.

Touch and go Mode of application

APPLICATION OF NFC

Movie buff gathering info about a movieusing his NFC enabled Mobile Phone

APPLICATION OF NFC

Touch and Confirm Applications such as mobile payment where the

user has to confirm the interaction by entering a password or just accepting the transaction.

APPLICATION OF NFC

Touch and ConnectLinking two NFC-enabled devices to enable peer to peer transfer of data such as downloading music, exchanging images or synchronizing address books.

Data transfer via NFC

NFC SPECIFICATION

NFC operates at 13.56 MHz and at rates ranging from 106 kbit/s to 424 kbit/s.

NFC always use an initiator and a target; the initiator actively generates an RF field that can power a passive target.

SOME DEVICES USING NFC TECHNOLOGY

Past & current smartphones: Nokia 6131 Google Nexus Blackberry Samsung Galaxy S 2 Samsung Galaxy Note Nokia Astound

Future smartphones: Windows Phones HTC LG

NFC ENABLED MOBILE WITH SD & SIM CARD

o Individuals wishing to use near field communication must own a compatible device or purchase an individual SIM card or microSD card with an NFC chip installed on it.

USES OF NFC

BEFORE & AFTER

Previously Used Methods

Current & Future Methods

ADVANTAGES OF NFC

Not restricted to 1-to-1 communication, it is 2-way communication.

Multiple devices in a small area can communicate with each other using the same frequency.

No special software is required. Secure level is high due to encoding system.High recognition speed and low recognition error.No manual configuration and settings. No search and pair procedure.

LIMITATIONS OF NFC

The system has the limitation that it can be operated only with devices under a short range i.e around 10 cm.

The data transfer rate is very less at about 106kbps, 212 kbps and 424kbps. 

CONCLUSION

Mobile handsets are the primary target for NFC and soon NFC will be implemented in most handheld devices. Even though NFC have the shortest range among radio frequency technologies, combining them with existing technologies like Bluetooth or Infrared can increase its range of applications.

THANK YOU

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